Improvement in rotary steam-engines



A.s HABLAN; ,1. ROTARY STEAMv ENGINE.

" @Nm 112,59L PatentedMar, `1.4, 1871- @Figure 2 is ztside elevation' 'of the cylinder, with/a. 1 `sectioned elevation ofthe inciosing ense;

`in which `thefrevolvingfcylinder is 4 provided with eircuinferentiel4 `ilnnges, forming two circumferential p'issiige's, ench et which elternattely receives and discharges stenin, and has placed l across ,itf the transverse rih, against which thestezun nots to pro'- opposite' sides oithelatter; to? the `centred lone of the two metal ha-ll' rings, ouopposite sides, both of the cylinder :und ol the flangesthe feces of whichhali rings, V:is `the cylind' Qrntntes, pnss'across the' portsiu the opposite sides ol h el s teeincliest tlnit in closes the cylinder, `turning nil Vsteam oi"` `the inductionport into one'oi the nl'ores'z'tid circnxnlerentinl passages, and, at the saune vtime,`. turning thcsteaurin' the other circuniferentinlpassage intogthe educton-port,lthere he-' ing :t constant steznn pressure upon one ort-he other of the trauisye-rse rihs-"nloresnid, and a constant dis-. chnrge 4of steam from. `ione or -the other of 4the .eircuin-- l fferentiztl,pnssngesg'4 tige-rei being nlso n. second cylinder "mount-edi in the steaiiu-chest Lhovethe irstend'eon- `f nected with thelfilst Vby coggeering, lsoidfu'p'per cylin- U der having e. circinnlerential groove, into Ywhich-the central circumferentialtlnngeol'fthe lower cylinder,

withl its half `rings, enters,".`the snid lupper cylinder,

l .ghuttinget' its extremitiespngeinst theinner sides of 4'the circhinferentiztluflaugesat the-ends of the lower d cylinder,A :ind formingf wthlllthe-hitter, n. jintsnil- `cieutly tight to preventflthe"` passage of steam, thusv compellingl theletter" topressfagniust the t-rzinsverse f ribs oi' the lowercylinder passages and to flow out et I i the ednction-portwhen reached; the saidupper cylf inder being recessed lengthwise ot its periphery nt the `proper points, nnd'to a suflcientextent to'edmit ofthe 2 transverseribs of the lower cylinder entering said recesses and xemainingtherein until clear of the'upper cilinderi.

21u the drawing- Als the vertical stenrnehest, to the outsideof 'which l are nttached the pipesa "aQwhich, nttheir upper l endsfnre 'scparetedby a. diaphragm, P, und connected with-zt pipe, b,tl1at conducts steam `from `the boiler,

l tremity, ily xneansof which steam maylbe admitted Viutoei'rher ol' thc pipes cw'fn-t pleasure; `the .vulve o heiugopemted hy the lcveiydtlntt is 'piroted tothe HA 1 Yor ntoonise'ron, ittixois.

" :telers Pennini). 112,591, met uarh 14,1871.

This invention "relateslto o rotary .ste'tmengine' l ducefthc revolution ofthe cylindexysziid ribs heilig at;

aforesaid cimurnfereutiel flanges. there being secured".

xafeedvto these Letters Patent of vthe annie. v

outside of the steam-chest and jvointed'to the stem a' ol' the vulve. e v

With the ypipes ma', near their upper ends, :tre also connected yertic'nl tubes ec.

At,thcir'lowerextremities the pipes afaf openinto `opposite `sides of; the chest A at' poiutssuitzthle for tho delivery ot' steznn against lthe lower cylinder. The stemn'escapes from the. chest bythe opposite pipe from `the one through which it entered- The tubes e ezire the exhaust passages ci'- the pipes a a', and nre furnished with vulves ef' con-the same stern ns the valve c, so arranged as' to simultaneously clone the exhaust-tube ev and the pipeannd open the exhnust-tubee' and the pipe a', orto open the tube e and pipe a' 'and close the tube e'a .ud pipe a together, no, that, whichever pipe conducts the .steztm, there is :tl- V ways afsingle unbroken passage from the pipe b to thev steam-chest, and from the s'teumchestto theesczspefV 'l Within the chest A are two cylinders, one :there the; other, mounted on shafts f f thnt pass through the?,- 'sides of the' chest.

The low-er cylinder hns threecircumfereutiel flanges g g' 'got' equal. dimensions, two nt its ends undone centlnl, which flanges hound two ci rcumfereutinl passages,

,h It', trnusversel y ot which, between the il-luiges g g'gp nre placed the ribs fi, one infeafch passage, of. the same height :is the iiaugcs, nud :it diametriezdly oppositepoints on the cylinder,

' Upontheopposite sides or extremityterminates- :nt a. point opposite the other The eornbined width of thehnlf rings j is equztl te thatoi either of the ports It k' ofthe pipes au', `nud.

as 'the half rings are in close contact with the interior of the chest A, and thesnid ports'l.'I k' are so locatedA that theirsides are in the same planess theouter" sides ci the two half rings, one or'the otheriof the' latter is always passing across and half closing eachA` of the ports,'and, owing to the locntion'of theialf rings on opposite. sides of the unge y',4 each port is elterr mately heli` closed ou one sidel and. then on the other.

in Iig. 1, where steam is supposed to be'euterng the chest 'A through the pipe a, the-mouth k is half closed on the right side andl half. open on the and the" mouth k' is half closed on vthe left side and half open ou the right. i I

By this arrangement steam is drawn from the pipeA A a into the left passage h,nnd, pressing against the left` rib @'prodnces e. rotation of the' cylinder. 1

' When this rotation has proceeded-soliti' aste curry "theleithadfring inni the lekt rihi past the port k' theceutrnl iiunge g' are secured two'lmlf rings j j also on' opposite sides offV the cyiiuder, euch of which half ringsnhuts et one extremity egninst'oue. oi' vthe ribs i, and at the otherV I the port'k'the right half ring clears the moutbk, open.-

ing the right side of the latter, the left baltring'passes across and closes the left half .of 'the mouth k,'and the. vsteamisconseqnently drawulinto the right lpassage h and acts againsttheright rib i, which clears the port. k at the saine momentsthat the left rib4 clears thev port yIt. The rotation of 'the cylinder isvther'efore' y continued by steam pressure on the right rib while the steam in the leftA passage is exhausting into the pipe e'. As soon as the right rib clears ythe port k' the steam in the rightpassage begins to exhaust into the pipe a',

and steam 'pressure istransferred-to the left-rib; such,

pressure'altcrnating frm. one rib to the other in' such manner as to maintain aconstant and uniform rotation of the cylinder, the exhaust also alternately'taking place from each chamber. i y

The `uppercylinder-,above referred to, is lettered B,

and is, in effect, a valve, its loice being'to prevent the exhaust steam from rotating with the cylinder instead jef escaping,r by the pipe a', and also to give the steam the proper direct-ion as it enters the chest A;

To'thi's'end rubber strips l l are interposed at each side lengthwise between the periphery of the cylinder B and the inner surface of the chest A, making a. steam` tight packing.

The'cylinderB fits closelybctween the twoonter flanges of the lower cylinder and has two circumferen tial grooves, an, which communicate at their ends, and are of the proper widthand depth and-in the iight .position to receivel the halt' rings vj and the central ange g' of the lower cylinder, the two cylinders being in contact along one line in earch of their peripheries, andbeiugv geared together so as toA rotate irl-unison.

Lengtli\ vise ofthe cylinder B recesses 'n nre formed in its periphery, one ateach-side of thecentral groove on, and' at diametxcically opposite pointsin the circumference of the cylinder; saidrecesse's being of the proper width 'and depth and in the right positions to receive the ribs i as they mountupward in therotation of the to pass clearofv the upper cylinder.

I claim as my inventionallarra'nged together, as specified. l

structedjas specified in the'l second claim," with the lower cylinder, constructedas specified inthe first.

claim. l,

y AARON S. 'HABLAN'.-

Witnesses A CLAYTON 0,. Kann, "Amos KEMP.

lower cylinder, and to afford said ribs 'space in which l. The lower cylinder, provided with the flanges g( g,-the half rings j,.thc passages h, and the'ribs i,

. 2]. Tlielupper cylinder, provided wthfthc circum-Iy 3. The combinationv of the; upper cylinder', con- 

